Custom Document Loader
Custom function for loading documents.
Last updated
Custom function for loading documents.
Last updated
The Custom Document Loader provides the ability to create custom document loading functionality using JavaScript. This module enables flexible and customized document processing through user-defined functions.
This module provides a flexible document loader that can:
Execute custom JavaScript functions for document loading
Handle input variables dynamically
Support both document and text outputs
Run in a sandboxed environment
Access flow context and variables
Process custom metadata
Javascript Function: Custom code that returns either:
Array of document objects (for Document output)
String (for Text output)
Input Variables: JSON object containing variables accessible in the function with $ prefix
Document: Array of document objects containing metadata and pageContent
Text: Concatenated string from pageContent of documents
Sandboxed execution environment
Variable injection support
Flow context access
Custom dependency support
Error handling
Timeout protection
Input validation
When returning documents, each object must have:
$input: Input value passed to the function
$vars: Access to flow variables
$flow: Flow context object containing:
chatflowId
sessionId
chatId
input
Functions run in a secure sandbox
10-second execution timeout
Built-in dependencies available
External dependencies configurable
Input variables must be valid JSON
Error handling for invalid returns
Supports async operations